CVE-2023-45802
Apache HTTP Server: HTTP/2 stream memory not reclaimed right away on RST
描述
When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During "normal" HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out. Users are recommended to upgrade to version 2.4.58, which fixes the issue.
如何修補 CVE-2023-45802
要修補 CVE-2023-45802,請將受影響套件升級到下列已修補版本。
- —升級至 2.4.58-r0 或更新版本
- —升級至 2.4.58 或更新版本
- —升級至 2.4.59-1~deb11u1 或更新版本
CVE-2023-45802 正在被利用嗎?
低 — EPSS 為 3.0%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.4.58-r0
- >= 2.4.17, < 2.4.58
- from 0, < 2.4.59-1~deb11u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |